If I were lazy, I could review Joe Danger by simply plagiarising my own assessment of last year's fab platformer Rayman Jungle Run, and changing a few of the words.

I doubt I'd get away with it. But I'm not just shirking work - there is a point here. You see, Hello Games realised, like Ubisoft, that simply porting its PlayStation Network hit to mobile wouldn't really work.

You'd have to use a nasty virtual joystick and there would be a sea of dodgy touchscreen buttons and it would be a big horrible compromise. So, instead, the developer started afresh. It rebuilt its game from the ground up, and made it just for iOS.